Nut-lock.



C. A. SEGK'INGER.

NUT LoGK. APPIUATION PILVBD SEPT. l2, 1911.

1,661,873. Patented May 13, 1913.A

@Hamai UNITED. STATES PATENT OFFICE.

CHARLES A. SECKINGER, OF KANSAS CITY, KANSAS.

NUT-LOCK Los-.tara

Specification of Letters Patent.A

Patented May 13, 1913.

Application ined septemberla, 1911. sei-iai No. 648,256.

To all -zc/iom 'it may concern.'

Be itlinown that I', CHARLES A. SEC1:- 1NGER, a citizen of the UnitedStates, resi ling at Kansas City, in the county of Tyandotte and--State'fof Kansas, have invented new and 'useful ImprovementsinNut-Locks, otivhich the following is a3 specification.

This invention relates to nut locks and the object of the invention isthe provision of a simple and e'ticient device of .this char- 'acterWhich will prevent the turningof the nut upon the bolt in eitherdirect-ion but of the nut and bolt and which will permit thedisconnection of the nut Whennecessarv Without any destruction pea-rasthelfollowing' specific description is.

read in 'connection with the acconipanyin gl Adrawing,@which forms apartof thls application,- and infwhich:-

Figure 1 isa side elevatlon. Fig. 2 1s a top plan v1eW.

Referring more particularly to the draw-` ing, l represents an ordinarybolt having a g grooveQ which extends through a portion of'itsthreaded-shank.- The nut is shown-at and Vpivoted thereon is a lockingdog 4 having -a projection 5 .thereon 'to engage the grooveQ in thebolt. This dog 'ijsarranged `in such a manner upon the nut that anyattempt to -unscreiv 'the nut causes the thrust direct-ly between oneWall of the grooveand the pivo-tpin of the 'dog'fL Therefore, any1Aunscrewing of the nut would not cause the dog to be -tlirowntoinoperatiue position.

- In order to hold the v dog 4 in operative position against movementaway. from the.

Without any appre- `ciable amount of trouble.

. Further objects of lthe invention will alpmoved from the groove. Thecam 9 acts to force the dog l into operative position when the lockingmember G is turned so as to bring the side 7. into engagement with thedog 4. j Hating thus described the invention, ivl-iat I4 claim as newis:-

A nut lock comprising a bolt `having a longitudinal V'shaped recess. anut threaded on the bolt. a lockingdog pivoted at one side tothe top ofthe nut and having a projection adapted to .snugly fit in the rec-ess,

.and a locking member eccentrically pivoted -to same' side on the top ofthe nut and adapted, to throw the locking dog into'engageinent With thebolt and hold the same in a locking position, said locking member havinga cam end adapted to force said locking dog into locking- .position anda Hat side adapted to lie throughout its ieu'gth against'the dog whenthe nut is locked,

In' testimony vvhereof I affix my signaturein presenceof tivo Witnesses.

. CHARLIE A SECKINGER Yitnessesz Bn'tNo-D. TA'UBER, CARL V. HERR.

